As used in this act: (a) “Teacher” means any unclassified employee of a state school who is required to hold a certificate to teach. The term “teacher” does not include within its meaning supervisors, principals, superintendents or any other persons employed in an administrative capacity at a state school.

(b) “State board” means the state board of education.

(c) “State school” means the Kansas state school for the deaf and the Kansas state school for the blind.